↑Hogan, John (2017). "A Ray of Hope". TV Guide Comic-Con Special 2017. p. 83. 'It's called Freedom Fighters: The Ray for a very specific reason,' Guggenheim explains, 'which is we knew we wanted to establish the Freedom Fighters and Earth-X. ... Some familiar voices will be dropping by, like Supergirl's Melissa Benoist as Overgirl, the Earth-X version of the Girl of Steel...